:root{
  --bg:#0b0f17; --bg-2:#111827; --card:#141b26; --line:#233043;
  --fg:#e6edf7; --muted:#93a2b8; --accent:#2563eb; --accent-soft:rgba(37,99,235,.14);
  --radius:16px; --shadow:0 10px 30px rgba(0,0,0,.35);
}
html[data-theme="light"]{
  --bg:#f7f9fc; --bg-2:#ffffff; --card:#ffffff; --line:#e4e9f2;
  --fg:#0f172a; --muted:#5b6b83; --accent-soft:rgba(37,99,235,.10);
  --shadow:0 10px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(1080px,100% - 2rem);margin-inline:auto}
.muted{color:var(--muted)}
.small{font-size:.92rem}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}
.brand{font-weight:800;letter-spacing:-.02em;color:var(--fg);font-size:1.05rem}
.brand:hover{text-decoration:none;color:var(--accent)}
.nav-links{display:flex;gap:1.1rem;flex-wrap:wrap}
.nav-links a{color:var(--muted);font-size:.92rem;font-weight:500}
.nav-links a:hover{color:var(--fg);text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--fg);
  border-radius:10px;padding:.35rem .6rem;font-size:1.1rem;cursor:pointer}

/* hero */
.hero{position:relative;padding:3.5rem 0 2.5rem;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(900px 380px at 50% -10%,var(--accent-soft),transparent 70%)}
.hero-cover{position:absolute;inset:0 0 auto;height:190px;background-size:cover;background-position:center;opacity:.28;filter:saturate(1.1)}
.hero-inner{position:relative;text-align:center}
.avatar{width:132px;height:132px;margin:0 auto 1.1rem;border-radius:50%;overflow:hidden;
  border:3px solid var(--accent);background:var(--card);display:grid;place-items:center;
  font-size:2.4rem;font-weight:700;box-shadow:var(--shadow)}
.avatar img{width:100%;height:100%;object-fit:cover}
.hero h1{font-size:clamp(2rem,5vw,3rem);margin:.2rem 0;letter-spacing:-.03em;line-height:1.15}
.headline{font-size:clamp(1rem,2.4vw,1.25rem);font-weight:600;color:var(--accent);margin:.2rem 0 .4rem}
.tagline{color:var(--muted);max-width:60ch;margin:0 auto 1rem}
.meta{list-style:none;display:flex;gap:1.2rem;flex-wrap:wrap;justify-content:center;padding:0;margin:.6rem 0 1.2rem;color:var(--muted);font-size:.93rem}
.meta a{color:var(--muted)}
.cta{display:flex;gap:.7rem;justify-content:center;flex-wrap:wrap;margin-bottom:1rem}
.btn{display:inline-block;padding:.7rem 1.35rem;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:transform .15s ease,opacity .15s ease}
.btn:hover{transform:translateY(-1px);text-decoration:none}
.btn.primary{background:var(--accent);color:#fff}
.btn.ghost{border-color:var(--line);color:var(--fg);background:var(--card)}
.socials{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap}
.socials a{font-size:.85rem;padding:.35rem .8rem;border:1px solid var(--line);border-radius:999px;color:var(--muted)}
.socials a:hover{color:var(--fg);border-color:var(--accent);text-decoration:none}

/* blocks */
.block{padding:2.6rem 0;border-top:1px solid var(--line)}
.block h2{font-size:1.5rem;letter-spacing:-.02em;margin:0 0 1.4rem;position:relative;padding-left:.85rem}
.block h2::before{content:"";position:absolute;left:0;top:.25rem;bottom:.25rem;width:4px;border-radius:4px;background:var(--accent)}
.prose{color:var(--fg);opacity:.92}
.prose.small{font-size:.95rem}

/* timeline */
.timeline{list-style:none;margin:0;padding:0 0 0 1.4rem;position:relative}
.timeline::before{content:"";position:absolute;left:5px;top:.4rem;bottom:.4rem;width:2px;background:var(--line)}
.timeline li{position:relative;padding:0 0 1.8rem 1rem}
.tl-dot{position:absolute;left:-1.4rem;top:.45rem;width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.tl-head{display:flex;gap:.8rem;align-items:baseline;justify-content:space-between;flex-wrap:wrap}
.tl-head h3{margin:0;font-size:1.08rem}
.date{color:var(--muted);font-size:.85rem;white-space:nowrap}
.org{margin:.15rem 0 .5rem;color:var(--muted);font-size:.95rem}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);border-color:var(--accent)}
.card-img{aspect-ratio:16/9;background:var(--bg-2)}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:1.05rem 1.15rem 1.25rem}
.card-body h3{margin:0 0 .25rem;font-size:1.05rem}
.card .date{display:inline-block;margin-bottom:.4rem}
.quote{padding:1.2rem 1.3rem;margin:0}
.quote footer{display:flex;align-items:center;gap:.7rem;margin-top:.9rem;font-size:.9rem}
.quote footer span{display:block;color:var(--muted);font-weight:400}
.avatar-sm{width:40px;height:40px;border-radius:50%;object-fit:cover}

/* skills */
.skill-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:.9rem}
.skill{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.85rem 1rem}
.skill-head{display:flex;justify-content:space-between;align-items:baseline;gap:.6rem}
.skill-name{font-weight:600}
.skill-level{font-size:.8rem;color:var(--accent);font-weight:600}
.chips{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:.55rem}
.chip{font-size:.78rem;padding:.2rem .6rem;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-weight:600}
.link{display:inline-block;margin-top:.6rem;font-size:.9rem;font-weight:600}

/* form */
.form{display:grid;gap:.9rem;max-width:640px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
.form label{display:grid;gap:.35rem;font-size:.88rem;font-weight:600;color:var(--muted)}
.form input,.form textarea{width:100%;padding:.7rem .85rem;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-2);color:var(--fg);font:inherit;font-weight:400}
.form input:focus,.form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.form .btn{justify-self:start}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.status{margin:0;font-size:.9rem;min-height:1.2em}
.status.ok{color:#22c55e}
.status.err{color:#ef4444}

/* footer */
.footer{border-top:1px solid var(--line);padding:2rem 0;margin-top:1rem;text-align:center;color:var(--muted);font-size:.9rem}
.footer p{margin:.2rem 0}

@media (max-width:760px){
  .nav-toggle{display:block}
  .nav-links{display:none;width:100%;flex-direction:column;gap:.6rem;padding:.6rem 0}
  .nav-links.open{display:flex}
  .nav-inner{flex-wrap:wrap}
  .form .row{grid-template-columns:1fr}
}